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http://hdl.handle.net/20.500.12128/7079
Tytuł: | The intrusive growth of initial cells in re-arangement of cells in cambium of Tilia Cordata Mill. |
Autor: | Włoch, Wiesław |
Słowa kluczowe: | cambium; intrusive growth; unequal periclinal division; initial surface |
Data wydania: | 1994 |
Źródło: | Acta Societatis Botanicorum Poloniae, Vol. 63, no. 2 (1994), s. 109-116 |
Abstrakt: | In the cambium of linden producing wood with short period o f grain inclination change (2-4 years), the intensive reorientation
o f cells takes place. This is possible mainly through an intrusive growth o f cell ends from one radial file entering space
between tangential walls o f neighboring file and through unequal periclinal divisions that occur in the ..initial surface” . The
intrusive growth is located on the longitudinal edge o f a fusiform cell close to the end, and causes deviation of cell ends in a
neighbouring file from the initial surface. Unequal periclinal division divides a cell with a deviated end into two derivatives,
unequal in size. The one o f them, which inherits the deviated end. leaves the initial surface becoming a xylem or phloem
mother cell. This means that the old end is eliminated. The intensity o f intrusive growth and unequal periclinal divisions is
decisive for the velocity of cambial cell reorientation. The oriented intrusive growth occurs only in the initial cells. For that
reason, changes in cell-ends position do not occur within one packet o f cells but are distinct between neighbouring packets. |
URI: | http://hdl.handle.net/20.500.12128/7079 |
ISSN: | 2083-9480 |
Pojawia się w kolekcji: | Artykuły (WNP)
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